alb3827231

Glacial Pothole

Glacial pothole in granite with many mineral streaks; Shelburne, Massachusetts. Potholes most commonly occur in areas where there are ancient rocks with different resistances to erosion. Stronger pebbles fall into small cavities in stream bottoms and swirl, widening and deepening the cavities.
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Titre:
Glacial Pothole
Glacial pothole in granite with many mineral streaks; Shelburne, Massachusetts. Potholes most commonly occur in areas where there are ancient rocks with different resistances to erosion. Stronger pebbles fall into small cavities in stream bottoms and swirl, widening and deepening the cavities.
Crédit:
Album / Science Source / CHRIS R. SHARP
Autorisations:
Modèle: Non - Propriété: Non
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Taille de l'image:
3422 x 5109 px | 50.0 MB
Taille d'impression:
29.0 x 43.3 cm | 11.4 x 17.0 in (300 dpi)
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